SOLUTION: A bus travels at x km/h for 30 minutes and then travels a further k km for 1/4 hour. The average speed of journey is

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Question 981688: A bus travels at x km/h for 30 minutes and then travels a further k km for 1/4 hour. The average speed of journey is
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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Total distance=((x km/hr)(0.5 hr)+k)
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Total time=0.5 hr+0.25 hr=0.75 hr
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Average speed=((x km/hr)(0.5 hr)+k)/(0.75hr)